(minor change) added date to web ref
added pydot utility for drawing informationFlow graphs
added beginnings of infoFlow viz and example script that uses it
updated behavior to use dataObject; method in progress for getEdges in infoFlow diagram; small updates to output dicts; dataObjects now have required attribute name
updated behavior to use dataObject; method in progress for getEdges in infoFlow diagram; small updates to output dicts; dataObjects now have required attribute name
somewhat working infoGraph implementation
minor edits to make error printing better